dot i's and cross t's

Science Dictionary
dot   (dŏt)  Pronunciation Key 
  1. A symbol (·) indicating multiplication, as in 2 · 4 = 8. It is used to indicate the dot product of vectors, for example A · B.

  2. A period, as used as in URLs and e-mail addresses, to separate strings of words, as in www.hmco.com.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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